ASSET Science Mock Test 1

1) The physical quantity atmospheric pressure can be expressed in two types of units. Which are the two types?

2) Which of these forces are not responsible for meteoroids entering the Earth's atmosphere?

3)There are 2 mirrors in a fully lighted room, and a boy , a girl and a dog, as shown in the figure below.The boy is looking at mirror 1 and the girl is looking at mirror 2. Which of the following will be true?

4) A person's voice differs from another's in many respects. Here are a few key differences. Which of the two characteristics do we use mostly to identify a friend's voice from telephone conversations or recordings?

5) It takes some time to see the objects in a dim room when we enter the room from bright sunlight outside. In bright sunlight, pupil of eye [blank_start]contracts/ expands[blank_end] to control the light. When we enter a dim room, pupil takes some time to [blank_start]expand/contract[blank_end] to [blank_start]allow/block[blank_end] light to see objects clearly.

Taslima has two glass tubes. Each tube contains a one-rupee coin and a small feather. Tube 1 is with a cork; the air in tube 2 has been pumped out and the tube sealed. After shaking the tubes to bring coin and feather to one end, she quickly brings the tube to a vertical position and watches the two objects fall in tubes 1 and 2. What is she likely to observe? In [blank_start]Tube 1 / Tube 2[blank_end] -Coin and feather fall at same speed In Tube [blank_start]1 /2[blank_end] - Coin falls faster than feather

[blank_start]Convex/Concave[blank_end] mirrors are commonly used as rear-view (wing) mirrors in vehicles. These mirrors are fitted on the sides of the vehicle, enabling the driver to see traffic behind him/her to facilitate safe driving. [blank_start]Convex/ Concave[blank_end] mirrors are preferred because they always give an [blank_start]erect/ inverted[blank_end], though diminished, image. Also, they have a wider field of view as they are curved [blank_start]outwards/inwards[blank_end]. Thus, it enable the driver to view much [blank_start]larger/ smaller[blank_end] area than would be possible with a plane mirror.

Which of these in the blood does not carries oxygen from the lungs to the body cells?

Non-metals and metals both react with oxygen to form oxides. What will happen if these oxides are dissolved in water separately?

By studying the symbol/formula of these substances, identify the one that can be decomposed by a chemical reaction?

Cells from which of the following would be expected to contain cell walls?

Mercury can vaporize if heated. This means that with enough heat mercury can become water vapour.

The first four compounds in a chemical series are CH4 - C2H6 - C3H8 - C4H10. Identify the fifth [blank_start]C5H10 C5H12 C6H12[blank_end]

The only way to stop a fire is to remove one or more requirements essential for fire. Some fires, like a wood fire, can be put out by water. In this case, which of the following does the water does not help remove/reduce, thereby putting out the fire?

Which of the following is/are unicellular?

The pH of a substance is a measure of its acidity as shown in the scale below: When Suresh complained of acidity, his doctor prescribed a liquid antacid which gave him relief. Which of these could not be the pH of the antacid?

Both AIR CONDITIONERS and AIR COOLERS can be used to cool rooms. What is the main difference in the effect they produce?

[blank_start]C4H8O[blank_end]

Two magnets attract each other because of the [blank_start]motion[blank_end] between them.

Many modern tanks for water and liquid fuels are made spherical in nature because for a given surface area, spherical tanks enclose maximum volume.

The white blood cells protect the body from infection by attacking the germs that invade our body and engulfing them in the same manner as an amoeba captures its food. Which of these characteristics is/are likely to help a white blood cell to perform this function?

Heena was trying to identify three different cells by observing them under the microscope. She noted down her observations as below. Which of the following could be TRUE about these cells? Cell [blank_start]1[blank_end] is an animal cell Cell [blank_start]2[blank_end] is a bacterial cell Cell [blank_start]3[blank_end] is a plant cell

Four participants –Anu, Babli, Charu and Diya enter a 100 metre race in which the first person to reach the finish line wins. All four run at their respective constant speeds from start to finish. The graph shows the distance that each of them covers in the first 4 seconds from the starting point at a constant speed. On the basis of the graph shown above, answer the following question.How much MORE time does the person finishing second take to reach the finish line than the winner of the race? [blank_start]1[blank_end] seconds.

Choose the correct options.

Pasteurisation of milk involves heating of milk for a certain period of time at a particular temperature and then suddenly cooling it. Which of the following are the benefits of pasteurisation ?

A person in space , where there is no air, is likely to [blank_start]see[blank_end] things but [blank_start]not hear[blank_end] sounds.

Which of the following increases when a thermometer is placed in hot water ?

On which of the following is frictional force acting ?

An astronomical telescope typically has two convex lenses, while a terrestrial telescope has three. The extra lens in a terrestrial telescope[blank_start]___________[blank_end]

The density of ice is less than that of water. Shown here is a beaker that contains ONLY SOLID ICE. The initial level is as indicated in the figure. If all the ice becomes water,the level will [blank_start]-------------------[blank_end]